MS. AGATA MAGDALENA WILLIAMS RDN
NPI 1699101089
Dietitian, Registered in Washington, DC
About Ms. Agata Magdalena Williams Rdn NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. AGATA MAGDALENA WILLIAMS RDN (NPI 1699101089) is an individual dietitian, registered in Washington, District Of Columbia, licensed in District Of Columbia (DI100000616) and active in the NPI registry since September 2013. She is a graduate of Other (2013).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Ms. Agata Magdalena Williams Rdn is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Agata Williams reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Arlington, VA 22203
- Reassigned Medicare billing, Maryland enrollment
- 668 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 20009 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WASHINGTON, DC 20009
WASHINGTON, DC 20009
WASHINGTON, DC 20009
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Agata Williams's NPI number?
The NPI number for Agata Williams is 1699101089. It was assigned to this individual provider in the NPPES registry on September 18, 2013.
Where is Agata Williams located?
Agata Williams practices at 1701 14th St NW, Washington, DC 20009. The listed phone number is (202) 745-7000.
What is Agata Williams's specialty?
The primary specialty registered for this NPI is Dietitian, Registered with taxonomy code 133V00000X.
Is Agata Williams enrolled in Medicare?
Yes. Agata Williams is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Agata Williams's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Agata Williams reassigns Medicare benefits to Privia Medical Group, LLC (Arlington, VA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Agata Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Agata Williams accept?
Health plans from Blue Cross Blue Shield of Arizona list Agata Williams as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Agata Williams was last updated on September 18, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Ms. Agata Magdalena Williams, RDN · NPI 1699101089
Dietitian, Registered provider in Washington, District of Columbia. Individual provider, active in the CMS NPPES registry since September 18, 2013.
## Identity
- **NPI:** 1699101089 (Entity type: Individual)
- **Enumerated:** September 18, 2013
- **Primary specialty:** Dietitian, Registered · taxonomy 133V00000X
- **State license:** DI100000616 (District of Columbia)
- **Sole proprietor:** No
## Practice location
- **Address:** 1701 14TH ST NW, Washington, DC 20009-4308
- **Phone:** (202) 745-7000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** Privia Medical Group, LLC (NPI 1013042480, Arlington, VA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2013
## Record status
- **NPPES last updated:** September 18, 2013
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Source: [NPI Profile](https://npiprofile.com/npi/1699101089) · Data from the CMS NPPES public registry.